Motor chassis



June 18, 1929. WR|GHT 1,717,867

MOTOR CHASSIS Filed July 26, 1927 2 Sheets-Sheet FJJJJJ INVEN'TOR. Inns:9. WRIGHT.

HTTORNEY.

J. A. WRIGHT June 18, 1929.

MOTOR CHASS IS 2 Sheets-Sheet Filed July 26, 1927 IIEIEI INVENTOR.

Inmss fl. Wmsnr HTTORNEY.

.Patented June 18, 1 929.

UNITED *STATES P-A-TENT, OFFICE.

' uras A. WRIGHT, or MONTREAL, QUEBEC, CANADA.

Moron cnAssIs.

Application filed July 26, 1921.: Serial No. 208,580.

1 that portion of the vehicle.

A further object is toprovide a frame in which the differential casingsform an important part in its construction and add greatly to itsstrength and stress resisting character.

A further object is to provide a frame which maintains. the driving gearrigidly in' position between the flexible axles of the rear wheels. s

The invention consists in apair of channel members with an upwardlyoffset portion adjacent the rear wheels, connected by cross membersmounted underneath the channel members, while the cross members at theother portions are mounted between the channel members.-

The floor supported on these cross members rises a very small amountbetween the raised portions of the channel members and provides a clearand unobstructed passageway through the vehicle. r

The differential casings are centrally secured to the lowersides ofthese underneath cross members and form therewith, a very substantialreinforcement to the frame at that portion of it.

. Reference is. made to drawings in which Fig; 1 is a plan view of theframe.

Fig. 2 is a vertical section on the line 22 of Fig. 1.

Fig. 3 is a plan view of the section of the frame adjacent the rearwheels.

Fig. 4 is a vertical section on the line 44 of Fig. 3.

Fig. 5 is a vertical cross section on the line 55 of Fig. 3. 1

Fig. 6 is a side view.

- The channelled side members 1, of the frame which preferably inclineinwardly at the front end or section, are upwardly ofi'set at the rearwheel section- 10, which are preferthe accompanying I ably reinforced. Aseries of cross members 2, connect the channelled side members 1,between'these side members, except at the upwardly .oflset section Wherea series of cross members 20, secured to brackets 21., run beneath thatportion of the side memberslO.

These cross members 20, are centrally connected in pairs by thedifferential casings 3, through the extension brackets 30, which aresecured beneath the cross members 20, by the bolts 22.

The casings 3, provide the spring seats 31, for the spring suspenion andalsov the bearings 32, for the worm drives 40, of the main drive shaft4.

The floor 5, supported on the side members 1, and the cross members 2,rises by the inclines 51, to the section 50, supported on the crossmembers 20, between the offset sections 10, seats 60, are providedrunning lengthwlse over the sections 10. I

Central side brackets 12, provide seats for the overloadsprings, outsidethe frame.

With this construction a frame is provided for a long passenger vehiclehaving great strength and resistance to torsional stress-in the sectionadjacent the driving mechanism, while the difierential .casings withtheir driving shaft bearings are held rigidly to the frame and givesteady and secure seats for the e spr ng suspension transverse springsoft on the flexible axles of the wheels.

The car body has a low level floor with but a slight rise over the rearWheel d'rive section and gives a clear and unobstructed passagewaythroughout the car body.

What I claim is 1. In a device of the class specified a frame comprisingside channel, members, upwardly ofiset adjacent the rear wheels, withchannel cross members beneath the offset section, and cross membersbetween the side members in the other sections of the frame, and a floorsupported on the cross members.

2. In a device of the class specified, a frame and a floor supported onsuch cross members with inclined portions connecting the higherlevelywith the lower level.

the eflset portion, channel cross members securedto the outside of theside members mounted underneath the ofiset portion of the at the offsetportion, channel cross members side .members, and secured to the sidemounted underneath the oifsetportion of the. 10 brackets. side members,and secured to the side 8 4. In a device ofthe class specified, a framebrackets, and differential casings centrally comprising side channelmembers, upwardly mounted between such cross members.

ofisetadja'cent the rear wheels, with brackets JAMES A. WRIGHT;

